Easy Tank Speed Log 2017-05-18 2 Consilium STW Speed Log with - - PowerPoint PPT Presentation

Easy Tank Speed Log

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STW Speed Log with Easy Installation

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• Based on proven Acoustic Correlation principle
• Easy calibration
• Well proven technology

High Performance Speed Log

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• Advantages with the Acoustic Correlation principle:
• Not sensitive to temperature or salinity layers
• Not affected by boundary layers

Influence of Currents for Speed Measurement

 vx Weak current Strong current vx Measured speed too far away from the vessel may not reflect the conditions at the vessel

Influence of the Boundary Layer

Strong Calibration always needed

Summary of Sources of Potential Errors

Acoustic logs EM logs Doppler Correlation (SAL) Temp layer Salinity layer Sub-currents Ship motion Air bubbles Boundary layer EMC Anti-Corrosion

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Easy Tank - Easy to Install

• Few mechanical parts
• Transducer mounting from the inside
• f the hull
• Light weight bottom parts

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Safe Design

• Pressure tested to 40 bar (400 m)
• Rugged mechanical design
• Water tight cable

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Easy Tank vs closed Sea Valve

Equally high or higher water integrity level

Space Savings

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• Small and compact bottom parts
• Acoustic Correlation technology to the price of an EM log

The Easy Tank System

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Easy Tank Data

• Speed Through Water measurement, STW
• Cable length: 10 m
• Size of transducer: Ø: 168 mm Height: 84 mm
• Weight of transducer incl. cable: 6 kg
• Pressure tested to 40 bar (400 m)
• Approved for both steel and aluminum hull
• ABS type approved
• Patent Pending

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